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. /** * Class represents the result of an availability check for the user. * * @package core_availability * @copyright 2014 The Open University * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later */ namespace core_availability; defined('MOODLE_INTERNAL') || die(); /** * Class represents the result of an availability check for the user. * * You can pass an object of this class to tree::get_result_information to * display suitable student information about the result. * * @package core_availability * @copyright 2014 The Open University * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later */ class result { /** @var bool True if the item is available */ protected $available; /** @var tree_node[] Array of nodes to display in failure information (node=>node). */ protected $shownodes = array(); /** * Constructs result. * * @param bool $available True if available * @param tree_node $node Node if failed & should be displayed * @param result[] $failedchildren Array of children who failed too */ public function __construct($available, tree_node $node = null, array $failedchildren = array()) { $this->available = $available; if (!$available) { if ($node) { $this->shownodes[spl_object_hash($node)] = $node; } foreach ($failedchildren as $child) { foreach ($child->shownodes as $key => $node) { $this->shownodes[$key] = $node; } } } } /** * Checks if the result was a yes. * * @return bool True if the activity is available */ public function is_available() { return $this->available; } /** * Filters the provided array so that it only includes nodes which are * supposed to be displayed in the result output. (I.e. those for which * the user failed the test, and which are not set to totally hide * output.) * * @param tree_node[] $array Input array of nodes * @return array Output array containing only those nodes set for display */ public function filter_nodes(array $array) { $out = array(); foreach ($array as $key => $node) { if (array_key_exists(spl_object_hash($node), $this->shownodes)) { $out[$key] = $node; } } return $out; } }